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A wire under tension vibrates with a frequency of 450Hz. What would be the fundamental frequency, if the wire were half as long, twice as thick and under one fourth tension ?A. 225HzB. 190HzC. 247HzD. 174Hz

Answer» Correct Answer - A
`n_2/n_1 = l_1/l_2 xx d_1/d_2 xx sqrt(T_2/T_1)`
`=2xx1/2xxsqrt(1/4) = 1/2`
`n_2 = n_1/2 = 450/2`
=225Hz


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